CVE-2026-3295: XSS (CVSS 7.4)

Description

IBM Cloud Pak System 2.3.6.0, and 2.3.6.1 is vulnerable to cross site scripting. The web app user‑supplied input is not properly sanitized or HTML‑encoded before being stored and rendered. An authenticated attacker could exploit this vulnerability by entering specially crafted payloads containing malicious JavaScript which are saved within the app and later executed automatically when user views affected pages, resulting in Stored Cross‑Site Scripting (Stored XSS).

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CVSS v3.1 Score

7.4

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

EPSS — Exploit Prediction

0.0018

Probability of exploitation

0.07%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://www.ibm.com/support/pages/node/7290183

Frequently Asked Questions

What is CVE-2026-3295? +

IBM Cloud Pak System 2.3.6.0, and 2.3.6.1 is vulnerable to cross site scripting. The web app user‑supplied input is not properly sanitized or HTML‑encoded before being stored and rendered. An authenticated attacker could exploit this vulnerability by entering specially crafted payloads containing malicious JavaScript which are saved within the app and later executed automatically when user views affected pages, resulting in Stored Cross‑Site Scripting (Stored XSS). It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2026-3295? +

CVE-2026-3295 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0018, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-3295? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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